PBN, but you should do it correctly , it can be a bit dangerous if it’s not handled properly. And then buy backlinck but you should buy it in a places with similar themes than you

Buying backlinks to increase rankings

Can you do Black hat seo for gambling site ? How much time needs to be at top searches? I can pay you high ads fund + per day fix salary

Building a pbn, the right way.

To some extent, paid links

Nothing Make Parasites index it buy expired domains 301 on perasites Boom

PBNs